public class Keyboard implements IUSB{

    @Override
    public void OpenDevice() {
        System.out.println("正在打开键盘服务");
    }

    public void input(){
        System.out.println("正在从键盘上输入内容");
    }

    @Override
    public void CloseDevice() {
        System.out.println("正在关闭键盘服务");
    }
}
